fixes #1028

app/models/comment.rb

@@ -37,7 +37,7 @@ class Comment < ActiveRecord::Base
     end
 
     def for_creator_name(user_name)
-      where("creator_id = (select _.id from users _ where lower(_.name) = lower(?))", user_name.downcase)
+      where("creator_id = (select _.id from users _ where lower(_.name) = lower(?))", user_name.mb_chars.downcase)
     end
 
     def search(params)
@@ -53,7 +53,7 @@ class Comment < ActiveRecord::Base
       end
 
       if params[:creator_name].present?
-        q = q.for_creator_name(params[:creator_name])
+        q = q.for_creator_name(params[:creator_name].tr(" ", "_"))
       end
 
       if params[:creator_id].present?

app/models/forum_post.rb

@@ -22,7 +22,7 @@ class ForumPost < ActiveRecord::Base
     end
 
     def creator_name(name)
-      where("forum_posts.creator_id = (select _.id from users _ where lower(_.name) = ?)", name.downcase)
+      where("forum_posts.creator_id = (select _.id from users _ where lower(_.name) = ?)", name.mb_chars.downcase)
     end
 
     def active
@@ -50,7 +50,7 @@ class ForumPost < ActiveRecord::Base
       end
 
       if params[:creator_name].present?
-        q = q.creator_name(params[:creator_name])
+        q = q.creator_name(params[:creator_name].tr(" ", "_"))
       end
 
       q

app/models/note.rb

@@ -27,7 +27,7 @@ class Note < ActiveRecord::Base
     end
 
     def creator_name(name)
-      where("creator_id = (select _.id from users _ where lower(_.name) = ?)", name.downcase)
+      where("creator_id = (select _.id from users _ where lower(_.name) = ?)", name.mb_chars.downcase)
     end
 
     def search(params)
@@ -47,7 +47,7 @@ class Note < ActiveRecord::Base
       end
 
       if params[:creator_name].present?
-        q = q.creator_name(params[:creator_name])
+        q = q.creator_name(params[:creator_name].tr(" ", "_"))
       end
 
       if params[:creator_id].present?

app/models/pool.rb

@@ -35,7 +35,7 @@ class Pool < ActiveRecord::Base
       end
 
       if params[:creator_name].present?
-        q = q.where("creator_id = (select _.id from users _ where lower(_.name) = ?)", params[:creator_name].downcase)
+        q = q.where("creator_id = (select _.id from users _ where lower(_.name) = ?)", params[:creator_name].tr(" ", "_").mb_chars.downcase)
       end
 
       if params[:creator_id].present?

app/models/tag.rb

@@ -440,7 +440,7 @@ class Tag < ActiveRecord::Base
       params = {} if params.blank?
 
       if params[:name_matches].present?
-        q = q.name_matches(params[:name_matches].strip)
+        q = q.name_matches(params[:name_matches].strip.tr(" ", "_"))
       end
 
       if params[:category].present?

app/models/user.rb

@@ -74,7 +74,7 @@ class User < ActiveRecord::Base
     module ClassMethods
       def name_to_id(name)
         Cache.get("uni:#{Cache.sanitize(name)}", 4.hours) do
-          select_value_sql("SELECT id FROM users WHERE lower(name) = ?", name.mb_chars.downcase)
+          select_value_sql("SELECT id FROM users WHERE lower(name) = ?", name.mb_chars.downcase.tr(" ", "_"))
         end
       end
 
@@ -545,11 +545,11 @@ class User < ActiveRecord::Base
       return q if params.blank?
 
       if params[:name].present?
-        q = q.name_matches(params[:name].mb_chars.downcase)
+        q = q.name_matches(params[:name].mb_chars.downcase.tr(" ", "_"))
       end
 
       if params[:name_matches].present?
-        q = q.name_matches(params[:name_matches].mb_chars.downcase)
+        q = q.name_matches(params[:name_matches].mb_chars.downcase.tr(" ", "_"))
       end
 
       if params[:min_level].present?

app/models/wiki_page.rb

@@ -42,7 +42,7 @@ class WikiPage < ActiveRecord::Base
       end
 
       if params[:creator_name].present?
-        q = q.where("creator_id = (select _.id from users _ where lower(_.name) = ?)", params[:creator_name].downcase)
+        q = q.where("creator_id = (select _.id from users _ where lower(_.name) = ?)", params[:creator_name].tr(" ", "_").mb_chars.downcase)
       end
 
       if params[:sort] == "time" || params[:sort] == "Date"